A vehicle air conditioner installed in a vehicle, the vehicle air conditioner including: an evaporator that causes heat exchange between air in an interior of a passenger compartment and a coolant; a condenser that causes heat exchange between the coolant and outside air; a spray nozzle that sprays water to a portion near the condenser; and a water tank that stores condensed water generated in the evaporator and water supplied from outside, as water to be sprayed by the spray nozzle.

A vehicle air conditioner installed in a vehicle includes: an evaporator that is provided on a ceiling of the vehicle and causes heat exchange between air in an interior of a passenger compartment and a coolant; a condenser that causes heat exchange between the coolant and outside air; a spray nozzle that sprays water to a portion near the condenser; a water tank that is provided in a lower portion of the vehicle and stores the water to be sprayed; and a drain hose that guides condensed water generated in the evaporator to the water tank. The drain hose is provided through a pillar.

A vehicle air conditioner installed in a vehicle includes: a condenser that causes heat exchange between a coolant and outside air; at least one spray nozzle that sprays water to a portion near the condenser; and a water tank that is in communication with the spray nozzle through an output hose, and stores the water to be sprayed. The at least one spray nozzle is disposed at a higher level than the water tank.

A cooling device, for example, for a galley of an aircraft, has a cooling apparatus with a refrigerating medium circuit which contains a first heat exchanger for discharging heat of the refrigerating medium to an ambient air flow and a second heat exchanger for absorbing heat into the refrigerating medium from a cold air flow for the galley. Condensate, namely water, produced by the cooling apparatus or the galley is received in collection devices. The collected water can them be retrieved from the collection devices and preferably introduced in the evaporated state into the ambient air flow so that a discharge of the water in liquid form is no longer required.

Methods and systems are provided for optimizing collection, usage, and processing of water on-board a vehicle. Water is harvested from various locations of the vehicle including from engine operation, surface condensation, and via dehumidification. Water is processed differently based on the source of the water as well as the intended use.

A heating, ventilation, air conditioning and refrigeration (HVAC&R) unit includes an evaporator circulating a flow of refrigerant therethrough to cool a flow of compartment air flowing over the evaporator, and a condenser operably connected to the evaporator to condense the flow of refrigerant therethrough. The evaporator and the condenser are relatively positioned such that a liquid condensate at an exterior of the evaporator is directed by gravity onto an exterior of the condenser to increase an operating capacity of the condenser.

The present disclosure redirects unused condensed liquid water from the HVAC system to the washer fluid system such that the washer fluid tank, which may be relatively small and light, does not have to be topped-off frequently. The washer fluid tank is constantly refilled, and the washer fluid supply does not have to be replenished with clean drinking water as often, preserving this important environmental resource. Vehicle sensor data and/or a mobile application usage algorithm control filling of the washer fluid tank, and optionally periodically add anti-freeze from an adjacent reservoir when necessary to maintain an operable washer fluid system even below 0 degrees C.

A humidifier system for a vehicle passenger cabin includes an onboard humidifier, an onboard reservoir in fluid communication with the humidifier and adapted to collect a fluid from a vehicle heat exchanger, and a controller configured to determine at least a passenger cabin relative humidity value and a dew point value for at least one vehicle window. The controller is configured to actuate the onboard humidifier to provide a humidified airflow into the passenger cabin, and to actuate a window heating system to heat the at least one vehicle window sufficiently to prevent or remove fogging resulting from the humidified airflow. Methods for controlling the humidifier system are described.

A tire cooling system can be installed in a vehicle to receive condensate from evaporator of the vehicle and use the condensate for cooling one or more tires of the vehicle. The system includes a drain line, a collection reservoir, a pump, at least one spray assembly configured for positioning proximate a vehicle tire, a valve, water level sensors, a tire temperature sensor, and a controller. The at least one spray assembly includes at least one nozzle attached to a manifold. A filter is disposed within the drain line for filtering condensate that is directed to the reservoir from the evaporator.

A cooling device for a vehicle is configured as a thermosiphon that performs heat transfer by a working fluid sealed in a sealed container to cool a target object. The cooling device includes an evaporator and an outdoor condenser. The evaporator forms a part of the sealed container, and evaporates the working fluid by absorbing heat of the target device. The outdoor condenser forms a part of the sealed container, and is disposed above the evaporator. The outdoor condenser is located adjacent to a cabin space with respect to a vehicle body around the cabin space. The outdoor condenser is fixed to the vehicle body or a member provided adjacent to the cabin space with respect to the vehicle body, and condenses the working fluid by radiating heat of the working fluid vaporized in the evaporator to an outside air.